Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 1677 322 19% 0.01 393 233 59% 6.5
10 Kinds of People 2885 621 22% 0.01 514 351 68% 5.0
2048 2865 1456 51% 0.00 1409 1211 86% 2.2
3D Printed Statues 373 234 63% 0.00 175 163 93% 1.9
3D Printer 127 34 27% 0.00 41 27 66% 5.5
3-Sided Dice 696 45 6% 0.00 119 38 32% 8.7
4 thought 2371 807 34% 0.00 821 676 82% 3.0
A1 Paper 1715 536 31% 0.00 527 413 78% 3.7
Aaah! 9299 4566 49% 0.00 3908 3655 94% 1.5
ABC 1572 776 49% 0.00 764 692 91% 1.7
A+B Problem 1979 206 10% 0.06 335 120 36% 8.3
Absurdistan Roads II 409 147 36% 0.00 137 92 67% 6.6
Absurdistan Roads III 869 222 26% 0.04 210 153 73% 5.8
A Classy Problem 2313 649 28% 0.02 601 482 80% 3.8
ACM Contest Scoring 2314 1454 63% 0.00 1304 1242 95% 1.4
Adding Words 2873 584 20% 0.00 683 483 71% 4.3
A Different List Game 3557 257 7% 0.00 425 74 17% 9.2
A Different Problem 11015 4518 41% 0.00 4192 3642 87% 1.9
Adjoin the Networks 704 213 30% 0.00 188 139 74% 6.1
Administrative Difficulties 341 83 24% 0.05 98 67 68% 5.2
Adventures in Moving -- Part IV 424 133 31% 0.00 129 109 84% 4.8
A Favourable Ending 427 77 18% 0.01 120 69 57% 6.3
A Feast For Cats 560 194 35% 0.56 150 125 83% 4.3
Air Conditioned Minions 1667 465 28% 0.00 504 372 74% 4.2
Airline Hub 1014 192 19% 0.01 191 116 61% 5.8
Airport Construction 1490 165 11% 0.05 138 78 57% 6.1
Airport Logistics 30 6 20% 0.00 10 6 60% 7.7
Airports 114 36 32% 0.23 32 23 72% 7.4
Akcija 1449 634 44% 0.01 602 523 87% 2.1
Aladin 587 49 8% 0.17 85 14 16% 8.8
Alchemy 31 8 26% 0.03 17 8 47% 8.0
Alea iacta est 22 11 50% 0.47 11 10 91% 5.1
Alien Numbers 859 452 53% 0.00 438 401 92% 1.7
A List Game 3138 909 29% 0.00 861 705 82% 3.2
All about that base 1560 558 36% 0.00 614 503 82% 2.9
All Different Directions 248 127 51% 0.00 131 115 88% 2.5
Allergy Test 147 53 36% 0.00 35 19 54% 7.3
All Friends 416 78 19% 0.01 63 38 60% 8.2
All Just A Dream 525 117 22% 0.07 94 65 69% 6.7
All Pairs Shortest Path 2100 390 19% 0.04 283 180 64% 6.5
Almost Perfect 1849 452 24% 0.00 487 373 77% 3.3
Almost Union-Find 2696 363 13% 0.03 439 196 45% 7.7
Alphabet Spam 2603 1708 66% 0.00 1140 1096 96% 1.4
Alternative Bracket Notation 157 67 43% 0.00 70 60 86% 5.2
Amalgamated Artichokes 2159 950 44% 0.01 852 749 88% 2.4
Amanda Lounges 773 186 24% 0.07 178 129 72% 6.0
Amazing Race 189 51 27% 0.54 56 40 71% 6.3
Ambiguous Result 96 28 29% 0.04 37 27 73% 6.5
Anagram Counting 934 378 40% 0.00 385 314 82% 3.0
Andrew the Ant 61 19 31% 0.10 25 17 68% 6.3
Androids 227 84 37% 0.09 95 67 71% 5.0
A New Alphabet 4167 1900 46% 0.00 1840 1716 93% 1.5
Animal Classification 979 189 19% 0.04 191 122 64% 6.7
An Industrial Spy 733 395 54% 0.02 300 261 87% 3.2
Another Brick in the Wall 782 430 55% 0.00 429 387 90% 2.0
Another Candies 3300 883 27% 0.00 935 756 81% 2.9
Another Dice Game 55 39 71% 0.00 35 33 94% 3.6
Anthony and Cora 245 64 26% 0.01 89 57 64% 5.3
Antiarithmetic? 497 107 22% 0.18 143 88 62% 6.4
Ants 1029 403 39% 0.01 354 297 84% 2.9
Apaxiaaaaaaaaaaaans! 3707 2312 62% 0.00 2094 2004 96% 1.3
Apparatus 448 104 23% 0.01 85 62 73% 5.6
Apple Market 243 51 21% 0.19 59 28 47% 7.9
Apples, Cherries, and Mangos 227 71 31% 0.02 66 53 80% 6.1
Aquarium Tank 191 55 29% 0.00 57 43 75% 5.1
Aqueduct Construction 53 12 23% 0.01 14 11 79% 7.2
Arable Area 180 32 18% 0.08 39 22 56% 7.9
A Rational Sequence 638 239 37% 0.00 238 196 82% 3.9
A Rational Sequence 2 365 276 76% 0.00 273 264 97% 1.5
Arbitrage? 361 77 21% 0.05 63 49 78% 5.1
Arcade! 748 121 16% 0.01 123 87 71% 5.5
Arctic Network 764 281 37% 0.02 214 182 85% 4.0
A Real Challenge 2315 1165 50% 0.00 1127 1070 95% 1.4
Area of Effect 78 8 10% 4.74 13 6 46% 7.9
Arithmetic 584 123 21% 0.01 151 97 64% 5.3
Army Strength (Easy) 1415 749 53% 0.00 639 584 91% 1.8
Army Strength (Hard) 1686 808 48% 0.01 582 511 88% 2.5
Around and Around We Go 9 3 33% 0.00 5 3 60% 8.2
Around the Track 168 26 15% 0.00 38 18 47% 8.4
Arranging Hat 102 48 47% 0.10 47 41 87% 4.2
Artur 138 24 17% 0.17 30 19 63% 6.0
Artwork 387 137 35% 0.07 140 87 62% 5.8
A Safe Bet 146 47 32% 0.27 41 34 83% 5.5
ASCII Figure Rotation 770 219 28% 0.00 240 200 83% 3.8
As Easy as CAB 160 37 23% 0.00 37 27 73% 6.1
Aspen Avenue 668 248 37% 0.01 145 108 74% 6.0
Assembly Line 25 10 40% 0.68 12 8 67% 7.1
Assigning Workstations 646 213 33% 0.12 216 170 79% 4.6
Association for Computing Machinery 1033 414 40% 0.00 404 351 87% 2.1
Association for Control Over Minds 626 215 34% 0.08 212 178 84% 3.8
Association for Convex Main Office 386 97 25% 0.08 98 78 80% 6.2
Association for Cool Machineries (Part 1) 510 100 20% 0.04 132 85 64% 6.8
Association for Cool Machineries (Part 2) 33 21 64% 0.00 21 19 90% 4.1
Association for the Country of Mububa 1007 226 22% 0.00 265 172 65% 5.9
Association of Camera Makers 105 5 5% 10.56 8 5 62% 8.4
Association of Cats and Magical Lights 1080 235 22% 0.23 214 160 75% 5.3
Association of Computer Maintenance 711 89 13% 0.04 75 45 60% 7.8
Asteroid Rangers 62 33 53% 0.10 24 23 96% 4.4
Asteroids 451 82 18% 0.00 51 42 82% 4.6
A Towering Problem 801 411 51% 0.00 418 374 89% 2.0